JPH0421122Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to an interlock monitoring device for improving the operability, adjustment workability, and maintenance/inspection workability of press machines and their auxiliary equipment. .

(Prior Art) There is a remarkable tendency for the mechanical devices and control devices of press machines and their auxiliary devices to become more and more complex and multi-functional. Therefore, since the operation and operation of these devices becomes more complicated, the burden on the operators involved increases, and if an operational error occurs, there is a risk that not only damage to the device but also personal injury may occur.

In order to avoid such a situation, an interlock monitor device has been proposed, for example, as disclosed in Utility Model Application No. 100705/1983.
However, in this type of prior art, as can be seen from the description and drawings of the invention, an interlock indicator lamp was provided for each row of operation blocks, which corresponded to each operation block. As the number of operation blocks increases, the number of display lamps also increases, posing a major obstacle to resource and energy conservation.
In addition, this conventional device has the problem that since the number of external wires and terminals is enormous, it is not easy to add or delete interlocks and operation blocks, and at the same time, the cost is high. Ta.

(Problems to be solved by the invention) The present invention has been made to solve the problems of the prior art, and it is possible to easily add and delete interlocks and operation blocks, and An object of the present invention is to provide an energy-saving and inexpensive interlock monitor device.

(Means for solving the problem) The means for solving the problem in this invention are as follows:
A monitor display board with a plurality of squares formed in a checkerboard shape in the vertical and horizontal directions, which displays interlock signals of sequence circuits wired to the press machine and its auxiliary equipment, and which is installed along the vertical or horizontal direction on the side of the display board. A group of multiple interlock display lamps,
a plurality of operation-specific block display lamp groups for displaying various operations during press operation and arranged on the other side of the display panel; an interlock name display field formed adjacent to the interlock display lamp group; a block name display field formed adjacent to a group of block display lamps for each operation; an interlock name emblem removably affixed to the interlock name display field; a block name emblem removably affixed to the block name display field; At the intersection of the row of the operation-specific block display lamp group and the interlock display lamp group column corresponding to the operation-specific block, there is a color and a shape of the other operation-specific block column.
The present invention is to include a color watz pen that is different and removably affixed.

(Example) FIG. 1 is a front view showing an example of an interlock monitor device according to the present invention. Various interlocks are installed at the left end and center of a monitor display panel 1 made of an aluminum plate or the like with a predetermined thickness. A plurality of interlock display lamps LPA to LPN corresponding to
A, 2A has each of the lamps LPA to LPN on the surface.
Interlock name badges 3A, 3B, . . . 3N that specifically display the interlock names to be displayed are pasted with adhesive.

Further, at the upper end of the monitor display panel 1, a plurality of operation block display lamps LPa to LPn corresponding to the operation blocks are arranged in a horizontal line, and the operation block display lamps formed below the lamp rows are arranged horizontally in a row. Name display field 2
On the surfaces of blocks a and 2a, block name badges 3a, 3b, .

The central part of the monitor display panel 1 is divided into a checkerboard shape with the row of interlock display lamps as above as the vertical axis and the row of block name display lamps for each operation as the horizontal axis. Color watz pens 4a, 4 with adhesive applied to the back of the eyes that intersect with the interlock name row corresponding to the operation.
b,...4n are attached removably.

Here, the color emblems 4a, 4b, . . . , 4n that are parallel to each operation block, that is, the color emblems 4a, 4b, . . . 4n included in the row of the same operation block.
is made up of cross pens that are different in color, shape, etc. from the color cross pens in other rows. For example, the colored cross pens in the "slide adjustment" column can be easily and reliably distinguished from the cross pens in other columns.

Each of the indicator lamps LP as described above is connected to an electric circuit, as shown in FIG. 2, and blinks in response to the connection state of the switches.

In the embodiment configured as described above, when the operator performs various operations, when looking at each column of block name emblems 3a to 3n, the color emblems 4a, 4b, . . . ...4n is pasted. Therefore, color wax pens 4a, 4b...4n
Interlock display lamps for only the interlock rows (horizontal rows) to which are pasted LPA, LPB,...
By looking at the LPN, you can easily judge whether the interlocks required for the operation are normal or not, and only when all the required interlocks are normal, the emblem 3 that displays the block name for each operation.
Indicator lamps LPa above a, 3b, ... 3n,
LPb,...LPn lights up to display "Ready for operation".

For this reason, when performing the operation indicated by the operation-specific block display lamp that is not lit, you can know the requested interlock name from the color emblem attached to the column of this lamp, and you can also know the abnormality from the interlock display lamp. Become.

Also, if the interlocks are the same, regardless of the number of blocks for each operation, one interlock indicator lamp is provided and the others are indicated by emblems, so the number of wires to the display panel and the number of terminals can be reduced. It is possible to minimize the number of interlocks necessary and to easily add and delete interlocks.

(Effects of the invention) This invention displays the interlocks required for each operation block with a color cross-cut pen that visually distinguishes it from other operation blocks, and detects abnormal interlocks simply by comparing the cross-hairs with the interlock display lamp. Therefore, there is no need to memorize a wide variety of complex interlocks for each operation, thereby reducing the burden on the operator.

In addition, with the present invention, when adding or deleting interlocks or operation-specific blocks, it is only necessary to add or delete the minimum necessary display lamps and attach or remove other color emblems. This allows for easy addition and deletion.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an interlock monitor device according to an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a connection example of each display lamp of the interlock monitor device. 1...Monitor display panel, 2A...Interlock name display field, 2a...Block name display field for each operation, 3A
~3N...Interlock name watzpen, 3a~3n
...Operation block name watzpen, 4a-4n...color emblem, LPA-LPN...interlock display lamp, LPa-LPn...block display lamp for each operation.

Claims (1)

[Scope of utility model registration request] A monitor display board with a plurality of squares formed in a checkerboard shape in the vertical and horizontal directions, which displays interlock signals of sequence circuits wired to the press machine and its auxiliary equipment, and which is installed along the vertical or horizontal direction on the side of the display board. A plurality of interlock display lamp groups arranged, a plurality of operation-specific block display lamp groups displaying various operations in press operation and arranged on the other side of the display panel, adjacent to the interlock display lamp group; an interlock name display field formed by the interlock name display field, a block name display field formed adjacent to the operation-specific block display lamp group, an interlock name emblem removably affixed to the interlock name display field, and the block name display field. The block name emblem is attached removably to the block, and the color and shape of the block name is marked with the color and shape of the other operation block at the intersection of the operation block display lamp group column and the interlock display lamp group column corresponding to the operation block. An interlock monitor device for a press machine, which is equipped with a color patch pen that is removably affixed in conjunction with a sequence circuit and has different colors.